Automation System
A disadvantage of Numerical Control (NC) is:

the machine tool can easily overheat
None of these
the computer is not reliable
one operator is needed for each machine.
the tape and tape reader are not reliable

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Automation System
The main function(s) of computer in CAD is/are

None of these
All of these
To relieve the designer from routine repetitious tasks.
To enhance the analytical and logical power of the designer
To serve as an extension to the memory of the designer

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